Trace number 1517893

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
march_hi hiUNSAT 20.9748 21.1051

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S2025517367-061.cnf
MD5SUM747eab6e16fc5e29dfb421f806361704
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark20.9748
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.02	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 20 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 357 free variables and 1510 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.453
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 163 duplicate clauses
0.00/0.02	c resolvent_look() :: found 109 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 360 variables and 1619 clauses.
0.00/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.02	c transformTo3SAT():: the transformation yielded 360 variabels and 1619 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 1619 / 360 ) = 4.50
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c number of free variables = 357
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |****************
c |********************************
c |****************************************************************| ( 0/10) NodeCount: 169
0.00/0.08	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/10) NodeCount: 2527
0.99/1.08	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/10) NodeCount: 9875
4.16/4.24	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/10) NodeCount: 20446
8.84/8.98	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/10) NodeCount: 32193
14.21/14.35	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/10) NodeCount: 40366
18.09/18.28	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/10) NodeCount: 44194
20.17/20.32	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/10) NodeCount: 45327
20.87/21.01	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/10) NodeCount: 45444
20.96/21.10	c |----------------------------------------------------------------|
c |****
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c |****************************************************************| ( 9/10) NodeCount: 45446
20.96/21.10	c |----------------------------------------------------------------|
c |
20.96/21.10	c
20.96/21.10	c main():: nodeCount: 45446
20.96/21.10	c main():: dead ends in main: 1013
20.96/21.10	c main():: lookAheadCount: 3204642
20.96/21.10	c main():: unitResolveCount: 447892
20.96/21.10	c main():: time=20.970000
20.96/21.10	c main():: necessary_assignments: 9318
20.96/21.10	c main():: bin_sat: 0, bin_unsat 0
20.96/21.10	c main():: doublelook: #: 181364, succes #: 131514
20.96/21.10	c main():: doublelook: overall 5.851 of all possible doublelooks executed
20.96/21.10	c main():: doublelook: succesrate: 72.514, average DL_trigger: 45.977
20.96/21.10	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517893-1238292561/watcher-1517893-1238292561 -o /tmp/evaluation-result-1517893-1238292561/solver-1517893-1238292561 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517893-1238292561.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.02 2.00 4/85 28736
/proc/meminfo: memFree=1799872/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=964 CPUtime=0
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 124 0 0 0 0 0 0 0 20 0 1 0 1101917071 987136 108 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 241 108 62 167 0 72 0

[startup+0.157983 s]
/proc/loadavg: 2.00 2.02 2.00 4/85 28736
/proc/meminfo: memFree=1799872/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1508 CPUtime=0.14
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 245 0 0 0 14 0 0 0 20 0 1 0 1101917071 1544192 228 1992294400 134512640 135197378 4294956240 18446744073709551615 134548521 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 377 228 91 167 0 208 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 1508

[startup+0.202988 s]
/proc/loadavg: 2.00 2.02 2.00 4/85 28736
/proc/meminfo: memFree=1799872/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1508 CPUtime=0.19
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 249 0 0 0 19 0 0 0 20 0 1 0 1101917071 1544192 232 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 377 232 91 167 0 208 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1508

[startup+0.302998 s]
/proc/loadavg: 2.00 2.02 2.00 4/85 28736
/proc/meminfo: memFree=1799872/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1508 CPUtime=0.29
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 252 0 0 0 29 0 0 0 21 0 1 0 1101917071 1544192 235 1992294400 134512640 135197378 4294956240 18446744073709551615 134615916 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 377 235 91 167 0 208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1508

[startup+0.701038 s]
/proc/loadavg: 2.00 2.02 2.00 4/85 28736
/proc/meminfo: memFree=1799872/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1640 CPUtime=0.69
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 260 0 0 0 69 0 0 0 25 0 1 0 1101917071 1679360 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134572734 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 410 243 91 167 0 241 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1640

[startup+1.50212 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1799160/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1640 CPUtime=1.48
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 272 0 0 0 148 0 0 0 25 0 1 0 1101917071 1679360 255 1992294400 134512640 135197378 4294956240 18446744073709551615 134542099 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 410 255 91 167 0 241 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 1640

[startup+3.10128 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798968/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1640 CPUtime=3.07
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 281 0 0 0 307 0 0 0 25 0 1 0 1101917071 1679360 264 1992294400 134512640 135197378 4294956240 18446744073709551615 134525358 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 410 264 91 167 0 241 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 1640

[startup+6.30159 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798840/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1640 CPUtime=6.25
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 288 0 0 0 625 0 0 0 25 0 1 0 1101917071 1679360 271 1992294400 134512640 135197378 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 410 271 91 167 0 241 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 1640

[startup+12.7012 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798776/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=12.61
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 295 0 0 0 1261 0 0 0 25 0 1 0 1101917071 1818624 278 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 278 91 167 0 275 0
Current children cumulated CPU time (s) 12.61
Current children cumulated vsize (KiB) 1776

Solver just ended. Dumping a history of the last processes samples

[startup+12.8012 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798776/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=12.71
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 295 0 0 0 1271 0 0 0 25 0 1 0 1101917071 1818624 278 1992294400 134512640 135197378 4294956240 18446744073709551615 134572889 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 278 91 167 0 275 0
Current children cumulated CPU time (s) 12.71
Current children cumulated vsize (KiB) 1776

[startup+16.0016 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798776/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=15.9
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 297 0 0 0 1590 0 0 0 25 0 1 0 1101917071 1818624 280 1992294400 134512640 135197378 4294956240 18446744073709551615 134548380 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 280 91 167 0 275 0
Current children cumulated CPU time (s) 15.9
Current children cumulated vsize (KiB) 1776

[startup+19.2019 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798776/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=19.08
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 311 0 0 0 1908 0 0 0 25 0 1 0 1101917071 1818624 294 1992294400 134512640 135197378 4294956240 18446744073709551615 134570906 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 294 91 167 0 275 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 1776

[startup+20.002 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798648/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=19.87
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 311 0 0 0 1987 0 0 0 25 0 1 0 1101917071 1818624 294 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 294 91 167 0 275 0
Current children cumulated CPU time (s) 19.87
Current children cumulated vsize (KiB) 1776

[startup+20.801 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798648/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=20.67
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 312 0 0 0 2067 0 0 0 25 0 1 0 1101917071 1818624 295 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 295 91 167 0 275 0
Current children cumulated CPU time (s) 20.67
Current children cumulated vsize (KiB) 1776

[startup+21.0071 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798648/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=20.87
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 313 0 0 0 2087 0 0 0 25 0 1 0 1101917071 1818624 296 1992294400 134512640 135197378 4294956240 18446744073709551615 134713217 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 296 91 167 0 275 0
Current children cumulated CPU time (s) 20.87
Current children cumulated vsize (KiB) 1776

[startup+21.1011 s]
/proc/loadavg: 2.00 2.02 2.00 3/86 28737
/proc/meminfo: memFree=1798648/2055920 swapFree=4169364/4192956
[pid=28736] ppid=28734 vsize=1776 CPUtime=20.96
/proc/28736/stat : 28736 (march_hi) R 28734 28736 27999 0 -1 4194304 313 0 0 0 2096 0 0 0 25 0 1 0 1101917071 1818624 296 1992294400 134512640 135197378 4294956240 18446744073709551615 134525346 0 0 4096 0 0 0 0 17 1 0 0
/proc/28736/statm: 444 296 91 167 0 275 0
Current children cumulated CPU time (s) 20.96
Current children cumulated vsize (KiB) 1776

Child status: 20
Real time (s): 21.1051
CPU time (s): 20.9748
CPU user time (s): 20.9728
CPU system time (s): 0.001999
CPU usage (%): 99.3828
Max. virtual memory (cumulated for all children) (KiB): 1776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.9728
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 316
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 704

runsolver used 0.036994 second user time and 0.091986 second system time

The end

Launcher Data 

Begin job on node70 at 2009-03-29 04:09:21
IDJOB=1517893
IDBENCH=70634
IDSOLVER=521
FILE ID=node70/1517893-1238292561
PBS_JOBID= 9061001
Free space on /tmp= 65292 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S2025517367-061.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517893-1238292561/watcher-1517893-1238292561 -o /tmp/evaluation-result-1517893-1238292561/solver-1517893-1238292561 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517893-1238292561.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 747eab6e16fc5e29dfb421f806361704
RANDOM SEED=628229718

node70.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1800352 kB
Buffers:         57248 kB
Cached:         142692 kB
SwapCached:       8752 kB
Active:         102024 kB
Inactive:       108036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1800352 kB
SwapTotal:     4192956 kB
SwapFree:      4169364 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          15204 kB
Slab:            29516 kB
Committed_AS:  2139544 kB
PageTables:       2668 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65292 MiB
End job on node70 at 2009-03-29 04:09:42